This document is directed toward supply chain managers in low- and middle-income countries and provides information about direct-drive solar refrigerators, which may be a good option for vaccine storage in areas with little or no electricity. It provides background about the technology and some practical guidance about weighing this option for specific situations.
Please note that this document is an update of the following existing WHO-PATH document published in 2013:
http://www.path.org/publications/detail.php?i=2336